A NOTE ON THE ZERO‐GRAZING OF BEEF CATTLE
作者:
J. F. D. Greenhalgh,
J. N. Aitken,
G. W. Reid,
期刊:
Grass and Forage Science
(WILEY Available online 1972)
卷期:
Volume 27,
issue 3
页码: 173-176
ISSN:0142-5242
年代: 1972
DOI:10.1111/j.1365-2494.1972.tb00705.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
ABSTRACTGroups of 8 steers weighing 300–400 kg (660–880 Ib) were rotationally grazed on a ryegrass‐dominant pasture for 115 days. The systems compared were zero grazing (Z), field grazing conducted at the same stocking rate (FC), and field grazing conducted at a stocking rate varied with the intention of giving the same liveweight gain per uiimal as zero grazing (FV). Mean daily liveweight gains were: Z, 0.98; FC, 0.78; FV, 0.90 kg/animal (2.2, 1.7 and 20 Ib/animal), and liveweight gains/unit area were in the ratio 100:78:85. Organic‐matter intake, measured on four occasions, was, on average, Z, 6.54; FC, 6.18; FV, 687 kg/head daily (14.4, 13.6 and 15.1Ib).From these results it appears that a comparison of zero grazing and field grazing made at the same stocking rate is likely to underestimate the potential of field grazing for beef production fro
点击下载:
PDF
(241KB)
返 回